Telegraph-repeater.



L. B. GEGIL.

TELEGRAPH BEPEATBB.

APPLIUATIOH FILED 11411.25. 190s.

Patented Nov. 24. 1908.

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L. B. GEGIL.

TELEGRAPH EBPEATER.

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L. B. CBGIL.

TELBGRAPH RBPEATER.

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904,936. Patented Nov. 24, 190s.

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Specification of Letters Patent.

Patented Nov. 24,V 1908.

Application led February 26, 1908. Serial No. 417,646.

To all whom 'it may concern.:

Be it known that I, LEWIS B. CECIL, a citizen of the United States, and a resident of Santa Barbara, in the county of Santa Barbara and State of California, have made certain new and useful Improvements in 'lelegraph-Repeaters, of which the following is a specification.

My invention is an improvement in telegraph repeaters and consists in certain novel constructions and combinations of parts hereinafter described and claimed.

Referring to the drawings forming a part hereof-Figure 1 is a diagrammatic plan view of the improved repeater and Fig. 2 is a side viewpartly in section. Fig. 3 is a section on the line 3-3 of Fig. 1, and Fig. 4 is a perspective view of the upper end of the bracket and connected parts.

The present embodiment of my invention comprises a base 1, upon which is supported two oppositely arranged relays A and B, said relays being similar in constructlon, and acting as transmitters. Each of said relays comprises the usual coils or magnets -2, supported by brackets 8, secured in any suitable manner to the base-board 1. The coils are adjustable in the bracket, by means of a threaded rod 4, connected with the bar 5,

which connects the two magnets, and extending through a support or (post `6, the outer end of the rod being threa ed and engaged by a thumb nut 7, whereby the coilsi may be moved toward and fromthe supporting post, a spring 8 being arranged between the post and the bar for normally moving the coil from the post. f

The armature 9, is supported betweenthe arms 10 of a U-shaped bracket 11 secured to the base, set screws 12 being threaded through the arms of the bracket and pro-v vided with de ressions for engaging the the armature in the usual manner. A spring 14 is connected with a hook 15 at the lower end of the armature,

sprin tion thereof, and a lock nut 22 is provided for locking the rod in its adjusted position. The upper end of each of the armatures, is provided on the face toward the magnet with which it coperates with a contact point 23, coacting with the contact point 24' on a lever 31, to be described, and on its opposite face with a block 25 of rubber or other insulating material, having at its lower outer corner a notch 26, for a purpose to be presently described, and the lower face of the block is provided with a plate 27 of conducti material. 4t t e u per end of each of the brackets 3, 1s provide a pair of spaced lugs 28, throu h which nre threaded set screws 29, having epressionsfin their inner ends for enga ing the trunnions 30, of the lever 31, Wiese lower end extends between the contact oint 23 and the bracket 3 as shown in Fig. 1. The upper end of the lever is engaged by a spring 32, whose other end is connected wit the bracket 3 before described, the

acting normally to move the lower end o the lever away from the bracket. An arm 33v of resilient material extends from the center of the lever 31, at approximately a right angle, the said arm being bent downward as at 34, and again horizontally as at 35, and the free end of the arm is adapted to engage the notch 26 in the block 25 before mentioned, whereby to retain the armature in contact with the lower end of the lever andV to retain said lower end of the lever in contact with the Vcontact point 24.

It will be evident from thedescription, that when the armature of the relay A is the bracket 3, thus swinging the arm 33 upwardly into position to engage the notch 26 of the armature on the relay B, thus retain ing said amature in closed position regard lessiof the condition of the magnets of such relay. A like condition will obtain with the relay ik when the relay B is open.

In the operation of the device, the main line a, is connected with the relay A, and the branch line Vb is connected with the relay B. Une end of the main line is connected to a. bindingost 36, on the base, and a wire a extends rom ythebinding post to the coils vof the relay, A, the return wire a2 from the coils being connected with the armature 9 of the relay B. The other end of the main connected with the bracket.

line, is connected with a binding post 37 on the base, and a wire a leads from the said binding ost to the bracket 3 of the relay B and to t e lever 31 corresponding to said relay, it being understood that the said lever is of conducting material and electrically It will be evident that when the armature of the relay B is operated, the main line circuit will be opened and closed, due to the contact and separation of the contact point 23 of the armature and the lower end of the lever. The engagement of the arm with the block on the armature of the o posite relay prevents the lower end of t e lever swlngingfar enough outwardly to engage the contact point 23,

One end of the branch line b, is connected with a binding post 38 on the base, and from this binding post a wire b leads to the armature 9 ofthe relay A. The other end of the branch line is connected with a binding post 39, and a wire b2 leads from the binding post 39 to the coils of the relay B, the return wire b from the coils bein connected with the bracket 3 of the relay through which the current passes to the lever corresponding to the relay, the lower end of the lever and the contact oint 23 thus serving as terminals for the ranch circuit. It will be evident from `the above description, that when the 25 on the relay of the armature A, thus locking said armature in closed position. The same condition is found when the armature of the relay A is o n as shown in Fi 1, the arm 33 connecte with the bracket o the relay A swin 'ng into osition to lock the armature of e rela in closed position. The plate 27 of con ucting materia on the lower face of the blocks 35, is connected, the one on the armature of the rela B with the branch line by a shunt b, and -t e one onthe block of the armature of the relay' A with the main line by a shunt a4. The above descrlbed connectlon is a safety connection, to geventthe breakin 'of the circuit in case th` armatures sho d open at once, in which case the arms would engage the plate of the armature on the opposite relay, to close the circuits. Switches 40, 41, are arranged to cut out the di'erent relays, the switch 40 having one post connected with' theV wire b and the other with the wire b2 on the relay B, and the other 41 having its posts connected with the wires a and a of the retact point 23 on the armature A with the lower end of the lever 30. When the branch line is working, the makes and-breaks in the circuit are repeated on the main line by means of the contact point 23 and the lower end of the lever 31 on the relay, B, and in either case, the arm 33 on the bracket of the relay which is working, kee s the armature of the relay which is not wor ing fromoperation.

I clim-1 h y 1. te e a re eater, comprising in combinationgrwilh thi;l main line and the branch line circuits a base, a pair of oppositely arranged relays on the base, Yone of said relays having its coils interposed in the main line circuit, and its armature connected with one end of the branch line circuit, the other relay having its coils interposed on the branch line circuit and its armature connected with one end of the main line circuit, a non-conducting block provided with a notchion the rear face of each armatiire, a conducting `plate on the lower face of each block, a lever pivoted on each relay and having one end interposed between the adjacent armature and its coperating contact,point, each of said levers having an arm projecting therefrom and extendingtoward the armature of the other relay, a spring engaging the u per end of the lever and acting when the a jacent-armature is open to move said arm into enga ement with the notch of the block of the o er armature to lock said armature in closed position, the lever ony the branch relay being connected with the other end of the main line circuit, and the lever of the mainline rela being connected with the other end of the ranch circuit, and the conductin plate on the armature of the main line re ay having a shunt connection with the branch circuit and the conducting plate on thearmature of the branch line relay having-a shunt connection with the main line circuit. l h

2. te e ra re eater com risin a main line adl; bralijch lirie relaly, -a 5onconducting-block on the armature of each ofthe ranch relay forming the terminals of lposition, the lever and the armature the main line circuit, and the lever and the armature on the main line relay forming the terminals'of the branch line clrcuit.

3. A telegraph repeater, comprising a main line and a branch line relay, a lever pivoted on each relay and having one end interpofsedY between the adjacent armature and its co ting contact point, each of said levers ggng an arm projecting therefrom and extending toward the armature of the other relay, a spring connected with the lever and actin when the adjacent armature is open to move said arm into ement with the other armature to lock said armature in closed position, the lever and the armature of the branch relay being adapted to serve as terminals for the main line eircuit, and the armature and lever of the main line relay being adapted to serve as terminais for the branch llne circuit.

4. A tel aph repeater comprising a main line re ay and a branch line relay, a repeatin device on the main line. relay and connectefgl with the branch circuit, a repeat ing device on the branch line relay and connected lwith the main line circuit, and means in connection with the repeating devices of each relay for engaging the armature of the other relay and locking the same in closed position when the armature of the first relay is open.

5.- A tele ph repeater comprising a main line re ay and a branch line relay, a repeating device on the main line relay and connected with the branch circuit, a repeating device on the branch line relay and connected with. the main line circuit, means in connection with the repeating devices of each relay for engaging the armature of the other relay and locking the same in closed position when the armature of the first relay is open, and means for preventing interruption of either circuit when both relays are open simultaneously.

6. A telegraph repeater, comprising a main line and a branch line relay, a lever pivoted on each relay and having an end lnterposed between the adjacent armature and its coperating contact point, a spring acting to move said lever from the contact point, the lever and the-armature of the ranch relay being ada ted to serve as terminals for the main me circuit and the armature and lever of the main line relay being adapted to serve as terminals for the branch line circuit, means in connection with each liever for preventing movement of the other relay when the relay adjacent to said lever is open, and for limiting the outward swinging movement of the end of the lever interposed between the amature and the contat pont. h i

7. te egrap repeater, com rising' a main line and a branch line a. eldingly mounted lever on each relay an having one end interposed between the adjacent armature and its coperating contact point, means for retaining the lever out of contact with both the armature and the contact point when the armature is o ,.the leverV and the armature of the brano relay being adapted to serve as terminals for the main line circuit, and the armature and lever of the main line relay being adapted to serve as terminals for the branch line circuit, and means for reventing the simultaneous opening of botli1 relays.

8. A tele aph repeater, comprising a main line re ay and a branch line relay, a repeatin device on the main line relay and connecte with the branch circuit, a repeating device on the branch line relay and connected with the main line circuit, and mechanical means in connection with the repeating devices of each relay for locking the armature of the other relay in closed position when the armature of the rst relay is open.

9. A telegraph repeater comprising a main line and a branch relay, a repeating device in connection with each rela and mechanical means in connection wit each repeating device for locking the armature of the other rela in closed position, when the armature of the first relay is open.

10. A repeating device comprising opposed relays, a repeating device in connection with the armature of each Vrelay,nd means ir connetion with each of said re peati evces or ositivel el 'lg and closinrigg the4 armaturle) of theyopposlte relay when said first named relay is open.

LEWIS B. CECIL Witnesses: y

Wmrmm S. WINTER, DANIEL L. Cron.. 

